Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quantas escolas restaram em 2002-03?
 ###Tabelas: CREATE TABLE singles:_7_2–5 (singles:_7_2–5_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Year INT, Championship VARCHAR, Surface VARCHAR, Opponent VARCHAR, Score VARCHAR) CREATE TABLE medal_table (medal_table_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Nation VARCHAR, Gold INT, Silver INT, Bronze INT, Total INT) CREATE TABLE former_members (former_members_id AUTO_INCREMENT PRIMARY KEY, Institution VARCHAR, Location VARCHAR, Founded INT, Type VARCHAR, Enrollment INT, Joined VARCHAR, Left VARCHAR, Nickname VARCHAR, Primary Conference when joining the MSFA VARCHAR, Current Primary Conference VARCHAR) CREATE TABLE singles:_10_8–2 (singles:_10_8–2_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Year INT, Championship VARCHAR, Surface VARCHAR, Opponent VARCHAR, Score VARCHAR) CREATE TABLE by_constituency (by_constituency_id AUTO_INCREMENT PRIMARY KEY, Constituency VARCHAR, Electorate INT, s Spoilt vote INT, Total poll (%) VARCHAR, For (%) VARCHAR, Against (%) VARCHAR)  
SELECT COUNT Location FROM former_members WHERE Left = 2002-03